Changes for page LT-22222-L -- LoRa I/O Controller User Manual
Last modified by Saxer Lin on 2025/04/15 17:24
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... ... @@ -1140,21 +1140,14 @@ 1140 1140 1141 1141 [[image:1653357531600-905.png]] 1142 1142 1143 +=== 3.6.4 Analog Input Interface === 1143 1143 1144 - 1145 - 1146 -1. 1147 -11. 1148 -111. Analog Input Interface 1149 - 1150 1150 The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is: 1151 1151 1152 -AC2 = (IN2 voltage )/12 1147 +**AC2 = (IN2 voltage )/12** 1153 1153 1154 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]1149 +[[image:1653357592296-182.png]] 1155 1155 1156 - 1157 - 1158 1158 Example to connect a 4~~20mA sensor 1159 1159 1160 1160 We take the wind speed sensor as an example for reference only. ... ... @@ -1170,67 +1170,30 @@ 1170 1170 1171 1171 Connection diagram: 1172 1172 1173 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]1166 +[[image:1653357640609-758.png]] 1174 1174 1175 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]1168 +[[image:1653357648330-671.png||height="155" width="733"]] 1176 1176 1170 +=== 3.6.5 Relay Output === 1177 1177 1178 - 1179 -1. 1180 -11. 1181 -111. Relay Output 1182 - 1172 +((( 1183 1183 The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below: 1174 +))) 1184 1184 1185 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]] 1186 1186 1177 +[[image:image-20220524100215-9.png]] 1187 1187 1188 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]1179 +[[image:image-20220524100215-10.png||height="382" width="723"]] 1189 1189 1190 1190 1182 +== 3.7 LEDs Indicators == 1191 1191 1184 +[[image:image-20220524100748-11.png]] 1192 1192 1186 += 4. Use AT Command = 1193 1193 1194 -1. 1195 -11. LEDs Indicators 1188 +== 4.1 Access AT Command == 1196 1196 1197 -(% border="1" style="background-color:#f7faff" %) 1198 -|**LEDs**|**Feature** 1199 -|**PWR**|Always on if there is power 1200 -|**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message. 1201 -|**TX**|((( 1202 -Device boot: TX blinks 5 times. 1203 - 1204 -Successful join network: TX ON for 5 seconds. 1205 - 1206 -Transmit a LoRa packet: TX blinks once 1207 -))) 1208 -|**RX**|RX blinks once when receive a packet. 1209 -|**DO1**| 1210 -|**DO2**| 1211 -|**DO3**| 1212 -|**DI2**|((( 1213 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low 1214 - 1215 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high 1216 -))) 1217 -|**DI2**|((( 1218 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low 1219 - 1220 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high 1221 -))) 1222 -|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high 1223 -|**DI2**|((( 1224 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low 1225 - 1226 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high 1227 -))) 1228 -|**RO1**| 1229 -|**RO2**| 1230 - 1231 -1. Use AT Command 1232 -11. Access AT Command 1233 - 1234 1234 LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below. 1235 1235 1236 1236 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
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